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sneckoencko
05.12.2020 •
Mathematics
Solve the following system of equations: (1 point)
x - 2y = 14
x + 3y = 9
O (1, 12)
O (-1, -12)
O (12, -1)
O (12, 1)
Solved
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Ответ:
(12,-1)
Step-by-step explanation:
Plug in the x and y values into the equation to see if it gives you 14 and 9.
Option 1:
(1) - 2(12)
1 - 24 = -23 Not it
Option 2:
(-1)-2(-12)
-1 + 24 = 23 Not it
Option 3:
(12) - 2(-1)
12 +2 = 14 Yes, but make sure with the second equation
12 +3(-1)
12 - 3 . Works
Answer is (12,-1)
Ответ:
its c, i took the test
Ответ: